Champion Power Equipment 50A 125/250V Power Inlet Box — Outdoor NEMA 3R, Recessed SS2-50P with LED Indicator

The Champion 50A 125/250V Power Inlet Box is an outdoor, NEMA 3R-rated inlet that gives you a safe, weather-resistant connection point to feed generator power into your home's electrical system.

When grid power fails, a dedicated inlet box provides a reliable way to move generator output into your house without running extension cords through doors or windows. This Champion inlet features a recessed SS2-50P 50A 125/250V plug, a weatherproof enclosure, a visible LED power indicator, and pre-wired grounding to simplify installation and increase safety. It is cETLus and CSA listed, intended to be paired with a compatible 50A generator cord and either installed by a professional or installed at home following the product manual.

How does this inlet box make connecting a generator safer?

The inlet box isolates the generator connection outside the home, reducing trip hazards and preventing backfeed into utility lines when used with a properly installed transfer switch. The recessed SS2-50P plug, pre-wired ground, and certified enclosure help ensure a compliant, secure hookup.

• Recessed SS2-50P inlet reduces accidental disconnection and weather exposure
• Pre-wired ground simplifies correct grounding during installation
• cETLus and CSA listings indicate compliance with recognized safety standards
• NEMA 3R rating protects internal components from rain and snow

Will this unit work with my existing generator and cord?

This inlet supports standard 50A 125/250V generator outputs and pairs with most 50A 4-prong generator cords designed for that rating. For plug-and-play use, pair it with a Champion 50A 125/250V generator cord or any cord with the matching SS2-50P/SS2-50R plug/receptacle configuration.

• Supports 50A 125/250V generator outputs used in many home standby setups
• Compatible with Champion model #100828 25 ft. 50A power cord and similar cords
• Works with transfer switches or manual transfer interlocks when installed correctly
• Check your generator’s outlet shape and amperage to confirm compatibility

How weatherproof and durable is the Champion inlet box?

The housing is built to NEMA 3R specifications, making it suitable for outdoor wall mounting where it will face rain and snow but not continuous immersion. The recessed plug and gasketed cover reduce moisture entry, and the stainless plug components resist corrosion for long-term reliability.

• NEMA 3R-rated enclosure for protection from rain and sleet
• Recessed, corrosion-resistant SS2-50P plug reduces exposure to the elements
• ¾" knockouts allow for standard conduit or flexible conduit runs
• LED power indicator on the cover helps verify generator feed without opening the box

What does installation involve and is professional help recommended?

Installation involves mounting the inlet to an exterior wall, routing wiring through the provided ¾" knockouts, and connecting to your transfer switch or service panel per local code. A qualified electrician is recommended to ensure compliance with electrical codes and safe, correct wiring, but the unit includes clear instructions for experienced DIYers.

• Mount on exterior wall near transfer switch or service entry for shortest wiring runs
• Use the ¾" knockouts for conduit; follow local code for conductor sizing and routing
• Pre-wired ground speeds up correct grounding; final connections require an electrician
• Product manual provides step-by-step wiring diagrams and installation notes

Who is this for: The Champion 50A 125/250V Power Inlet Box is aimed at homeowners and contractors who need a professional-grade, outdoor inlet for a 50A generator hookup. It suits those installing a standby solution or manual-transfer setup for essential circuits, and is especially useful where a weather-resistant, code-compliant exterior connection is required. If you have a 50A generator or plan to upgrade to one, and you want a safer, cleaner way to route generator power into your home, this inlet provides the necessary hardware and certifications supported by Champion's warranty and technical support.